018-5311-00 - Bad Boy Mower Parts
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018-5311-00 – 5/8-11 – 4″ GR – Hex Bolts Zinc

Key Features of Bad Boy Mower 018-5311-00 – 5/8-11 x 4" Grade 8 Hex Bolt Zinc

  • OEM Quality Construction: Genuine Bad Boy replacement bolt engineered to exact factory specifications.
  • Grade 8 Strength: High-tensile steel provides maximum durability and resistance to stretching or shearing.
  • 5/8-11 Coarse Thread: Ensures strong engagement and secure fastening under heavy load conditions.
  • 4-Inch Length: Provides proper reach for use in deck, frame, and suspension assemblies.
  • Zinc-Plated Finish: Offers superior corrosion protection against rust, moisture, and wear.
  • Precision Hex Head: Allows accurate torque application and easy service with standard tools.
  • Direct OEM Fit: Exact replacement guarantees perfect fitment and reliable performance.
  • See Models Used On below for more detail.

  • SKU:

    018-5311-00

  • Weight:

    0.40

$4.06
Usually ship in 1-3 days

Bad Boy Mower 018-5311-00 – 5/8-11 x 4″ Grade 8 Hex Bolt Zinc

The Bad Boy Mower 018-5311-00 – 5/8-11 x 4″ Grade 8 Hex Bolt Zinc is a genuine OEM replacement fastener built for superior strength, reliability, and corrosion resistance. Designed to meet Bad Boy’s exact engineering standards, this heavy-duty bolt provides secure fastening for high-stress mower assemblies that experience constant vibration and load pressure.

Manufactured from Grade 8 high-tensile steel, this bolt delivers maximum holding power and exceptional resistance to stretching and shearing forces. The 5/8-11 coarse thread pattern allows for smooth engagement and strong clamping force, ensuring components remain tight and stable during heavy operation.

The durable zinc-plated coating protects the bolt from rust, corrosion, and environmental exposure, extending the life of both the hardware and surrounding components. The 4-inch length provides the ideal reach for use in frame, deck, and suspension assemblies on Bad Boy Mowers.

Unlike generic fasteners, the Bad Boy OEM Grade 8 Hex Bolt guarantees proper thread fitment, torque compatibility, and consistent performance over time. It’s built to handle the demanding conditions of professional and residential mowing environments.

At BadBoyMowerParts.com, we stock the full range of OEM bolts, nuts, washers, and hardware kits built to Bad Boy’s high-performance standards. With free shipping on orders over $100, keeping genuine hardware like the 018-5311-00 on hand ensures long-lasting mower integrity and dependable performance.

Weight 0.40 lbs

Models Used On

(Click Link For Diagram)

2026

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